CVE-2021-21433 Remote code execution on discord-recon .dirsearch and .arjun commands due to improper input validation

Critical 9.9 Published 9 Apr 2021 Updated 3 Aug 2024

Remote attackers can execute arbitrary commands on the Discord Recon Server via improper input validation in specific commands.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-21433?

CVE-2021-21433 is a critical command injection vulnerability in DEMON1A Discord-Recon, published on 9 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Discord Recon Server is a bot that allows you to do your reconnaissance process from your Discord. Remote code execution in version 0.0.1 would allow remote users to execute commands on the server resulting in serious issues. This flaw is patched in 0.0.2.

Weakness: CWE-78, CWE-94

Which versions are affected by CVE-2021-21433?

It affects 1 product.

Products include Demon1a Discord-Recon.

How do I fix CVE-2021-21433?

No fix has been published for CVE-2021-21433 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-21433 being exploited?

There is no known exploitation of CVE-2021-21433 in the wild and no public exploit code.

Sources

Also known as GHSA-65fm-5x64-gv9x.